Screw-spike for rail-chairs.



A. G. LIEBMANN. SCREW SPIKE POR RAIL CHAIRS. APPLICATION FILED SEPT. za. 1913.

1,126,531 Patented Jan. 26, 1915.

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l u-@ullum `I UNITED srrArns rAgrnnrr orales.

AUGUST G.,L1EBMANN,-OF,BUTTE, MONTANA, ASSIGNA0R TO COMPANY, or Nnw'yon'm N', Y'.,' A coRronArIoN or nELAwARn.

scanw-srrxn Fon- RAILCHAIRS. Y

, Specication' of Letters latent.

Application lcd September, 19'13. i Serial No. 791,379.

To all whom it may concern:

Be it known that I, AUGUST G. LIEBMANN,

citizen of the United States, residing at Butte, in the county of Silverbow and State of Montana, have invented certain .newand useful Improvements in Screw-Spikes for Rail-Chairs, of which the l'following is a specification.

This invention relates to railway track appliance, and particularly. to railway spikes.

The primary object of the-invention is the provision of a s'pikepecularly adapted' for holding rail chairs or other rail supporting means solidly upona tie, and in this connection to so construct the spike that it is adapted to engage rail adjusting means so that the spike not onl forms the primary fastening for the tie ut a secondary fastening for the rail. i

A further object of the invention is to so form the -spike that it may be readily screwed into' the 'woodof a tie by various screw spike setting appliances now in use.

A further object of the invention is to so form the spike that-the rail may be adjusted and the secondar fastenings engaging the spike be adjuste without the necessity of removing the spike from the tie.

Other objects will appear in the course of `the following description.

The invention is illustrated in the accompanying drawings wherein: l y

Figure l is a perspective view of a screw spike constructed, in accordance with the invention. Fig. 2 'is a side elevation partly in section of the imp oved spike as applied to a rail chair. Fig. is a view of a modified form of screw spike.

Corresponding and like parts.are referred to in the following description and indithreads 4 and the screw threads 3 is formed. an outwardlyextendin The upper extremity o ,head orl iiange 5. thespike is square or many sided in form lto permit saidfspike to be'engaged by a`wrench or other4 tool.

- nut. down the' nuts 11 and 12, the wedging mem' the ends of the spike' While it is to be understoodffnthat the improved screw spike maybe used with any VIGNo'LEs mm.. CHAIR 4 Patented Jan. 26, i915. y

form of rail chair to which it is adapted, l

it is peculiarly adapted, for instance, to the form of rail chair shown in Fig. 2, this rail chair forming the subject matter of anapplication for patent filed by me on the 10thl day of July, 1913, Serial No. 778,402. In this figure, A designates a tie and B a rail. The tie A Ais supposed to be a wood tie and the rail'B of any standard or conventional form. Disposed upon the tie A is a bed 'plate 6 having upwardly extending abut-- ment 7, the inner face of each abutment being downwardly and inwardly inclined as at 8. Disposed against the head of the rail and the base thereof is a downwardly and outwardly inclined rail brace9.

Loosely mounted upon the screw spike 2l is a wedging member 10, the inner' face of which is inclinedto correspond .with the inclination of the outer face of the rail brace 9, while its outer face is slightly inclined downward and inward to coact with` the inner face 8 of the abutment 7. Thiswedg- 4ing member 10 is -loose upon the spikeand does not havel screw `threaded engagement therewith.

Engaging the screw threads of the spike are nuts 11 and 12, the nut 12; being a lock It will now/be seen that by turning loer 10 lwill be forced into firm engagement between the abutment'7 and the rail brace 9 `and will wedge the rail brace against the rail B preventing any lateral movement of the rail or any vertical movement, it being understood f that there are two of these wedging members dispos d one at each end of the chair and a spike engaging with each wedging member.

lf it be desired to shiftthe rail B laterally, the nuts 11 and 12 of one spike are released, and the nuts on the other spike tlirned downwardly Wedging the rail laterally'until its correct position has .been secured.` By tightening up ilpon both sets of nuts, the rail is held in its shifted position. When it lis desired to .elevate the rail, shims are disposed between the rail base and the bed plate 6, the nntsll and`12 being rotated in one direction Vtd'perinit'the insertion of this shim: and then rotated in the opposite direction to clamp the rail rmly down upon the shim. 1t will be noted that this' los ill@

adjustment of the rail may be secured without releasing the engagement of the spikes with the tie, and that thus it is only othe secondary fastenings which are shifted, the primary fastenings remaining' precisely as ,they were. l In Fig. 3 there is shown a modified form of the spike inwhich the Hange or head 5. is omitted. In this form of' the device, l13 designates a bed plate or wear plate which rests upon the tie A and supports the rail B. This bed plate has at opposite points on each side of the rail B a perforation 14 surrounded by an upstanding wall 15, the upper face of said wall being downwardly and outwardly beveled. The spike 2@ has a screw threaded portion 3 designed to engage the wood of the tie, and a screw threaded portion 4, said spike terminating at'its upper end in a many sided-head 16 adapted to be engaged by a wrench.

For the purpose of holding the`Y rail to the tie, there isprovided a clamping member' 17 which is preferably annular in form and beveledupon its under face to lit upon the bevel of the wall 15 and tov engage over the inclined upper face of the rail base. This clamping member 17 has vscrew threaded engagement with the threads la of the spike. Y

Fig. 3 shows that the invention may be applied to wear plates which simply act to support the-rail and in which there is no lateral adjustment of the rail. It is obvious that shims may be inserted between the rail basca-nd the wear plate 13 by simply` turning up the clamping member 17, .inserting the shim and then turning down the cla ingvmember until it bears nsolidly against the upper face of the rail base. y

While two forms of rail supports to which the improved spike is applicable have been illustrated, it' will .be understood that`- the spike may befused with any form of rail support or chair to which it is adapted.

VVhatI claim is: v 1. A screw spike of the character described comprising a straight shank, the

lower portion of the spike being formed,`

with wood screw threads, the spike intermediate its ends beingformed with an enlarged head, the shank above said head being formed with screw threads adapted for engagement with nuts and the upper eX- tremity of the spike being formed with a Amany sided head whereby a wrench may be engaged with the spike.

2. A spike of the character Vdescribed ncluding a? straight shank formed intermediate its ends with an integral laterally projecting head adapted to 'engagea support,

the lower portion of the spike below said head being formed with wood screw threads,

and means engaging the upper portion of the spike adapted to operatively engage a rail. y 3. A spike of the character described inicluding a straight shank formed intermediate its end with integral laterally projecting head, the lower portion ofthe spike below said head being formed with wood screw threads, and means engaging the upper portion of the spike adapted to operatively engage a rail, said means being ad-n 

